80528633 has 4 divisors (see below), whose sum is σ = 82492788. Its totient is φ = 78564480.

The previous prime is 80528629. The next prime is 80528641. The reversal of 80528633 is 33682508.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18386944 + 62141689 = 4288^2 + 7883^2 .

It is a cyclic number.

It is not a de Polignac number, because 80528633 - 2² = 80528629 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80528593 and 80528602.

It is not an unprimeable number, because it can be changed into a prime (80528933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 982016 + ... + 982097.

It is an arithmetic number, because the mean of its divisors is an integer number (20623197).

Almost surely, 2^80528633 is an apocalyptic number.

It is an amenable number.

80528633 is a deficient number, since it is larger than the sum of its proper divisors (1964155).

80528633 is a wasteful number, since it uses less digits than its factorization.

80528633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1964154.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 80528633 is about 8973.7747353051. The cubic root of 80528633 is about 431.8339428788.

The spelling of 80528633 in words is "eighty million, five hundred twenty-eight thousand, six hundred thirty-three".